In the animated adaptation, Coringa emerges as a strategic yet chaotic antagonist thrust into feudal Japan alongside fellow Gotham City foes. Capitalizing on the historical setting, he expands his influence by ascending as a feudal lord through the deception of local warlords and the unification of rival factions under his banner. Commanding legions of samurai, he engineers a mechanized fortress, repurposing Arkham Asylum into a mobile robotic stronghold that terrorizes the land.

In this era, he wields razor-sharp fans and katanas, abandoning his signature chemical arsenal for bladed precision. He forges volatile alliances with villains like Gorilla Grodd and Two-Face, only to shatter them through mercurial treachery. An explosive confrontation strips Coringa and Harley Quinn of their memories, forcing them into a brief pastoral existence until rare, engineered flowers reignite their true selves.

The climax sees him amalgamate multiple mechanized castles into the towering "Lord Joker," a robotic leviathan designed to crush all resistance. Opposed by a coalition of enemies and former allies, his reign unravels in a climactic duel where tactical swordplay seals his defeat. Throughout, Coringa balances theatrical chaos with cold calculation, transposing his anarchic legacy into feudal Japan while relentlessly undermining order and authority.